1323838021101 has 16 divisors (see below), whose sum is σ = 1819322091648. Its totient is φ = 855863870400.

The previous prime is 1323838021049. The next prime is 1323838021117. The reversal of 1323838021101 is 1011208383231.

It is a happy number.

It is not a de Polignac number, because 1323838021101 - 2¹⁴ = 1323838004717 is a prime.

It is a super-2 number, since 2×1323838021101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323838021171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50931286 + ... + 50957271.

It is an arithmetic number, because the mean of its divisors is an integer number (113707630728).

Almost surely, 2^{1323838021101} is an apocalyptic number.

It is an amenable number.

1323838021101 is a deficient number, since it is larger than the sum of its proper divisors (495484070547).

1323838021101 is a wasteful number, since it uses less digits than its factorization.

1323838021101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101888692.

The product of its (nonzero) digits is 6912, while the sum is 33.

The spelling of 1323838021101 in words is "one trillion, three hundred twenty-three billion, eight hundred thirty-eight million, twenty-one thousand, one hundred one".